@inproceedings{dammertz08qbvh, title = {Shallow Bounding Volume Hierarchies for Fast {SIMD} Ray Tracing of Incoherent Rays}, author = {Holger Dammertz and Johannes Hanika and Alexander Keller}, booktitle = {Computer Graphics Forum (Proc. 19th Eurographics Symposium on Rendering)}, pages = {1225--1234}, year = 2008 }